Fix for VTT writer

Doesn't support <br/> tags
Merge pull request #842 from timhobbs/upstream-master

Fix for VTT writer
remove <br/> from parsed subtitles
Merge branch 'master' of https://github.com/MediaBrowser/MediaBrowser

Conflicts:
	MediaBrowser.MediaEncoding/Subtitles/VttWriter.cs
fixes #843 - Update Dlna to respect user audio/subtitle language settings
add library folder option to home page
replace all images when using identify function
update translations
subtitle fixes
seek with vtt subs
Merge remote-tracking branch 'upstream/master'